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When sodium reacts with excess of oxygen...

When sodium reacts with excess of oxygen, oxidation number of oxygen changes from

A

0 to -1

B

0 to -2

C

`-1` to `-2`

D

No change.

Text Solution

Verified by Experts

The correct Answer is:
A
`2Na+overset(0)(O_(2))toNa_(2) overset(-1)(O_(2))`
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